14 Raith User Guide
The battery charger will charge each individual cell to
approximately 4.15V per cell. The high voltage cut off is
4.25V per cell. This means there is a small buffer of energy
the battery can absorb at full charge before a brake cut off
event occurs. Keep this in mind when using regenerative
brakes. Do not use regenerative brakes heavily on a full
charge as you may exceed this buffer and experience brake
cut off.
If you plan to use large amounts of regenerative brakes from
the beginning of your ride (for instance in racing or riding
down a large hill) only charge your battery to approximately
90% so the battery can absorb the charge.
Further technical breakdown:
The battery charger will charge each individual cell to 4.15V
(if the battery is charging as intended). An alarm will sound
when a cell reaches 4.2V (constant sounding) and cut off will
occur at 4.25V per cell. A buffer of 0.1V per cell has been
engineered to allow “some” regenerative braking at full
charge. If you hear a constant sounding alarm, your BMS is
approaching cut off voltage, stop using regenerative braking
and arrest speed with a mechanical method of braking
instead.
If your battery is getting old, some cell voltages may differ
causing some cells to have a higher or lower voltage. If you
notice the high voltage alarm is being activated during
charging. You may have a cell that is not behaving/charging
like the rest of the battery cells, which may indicate your
battery needs replacing.
ROLL TO START
Your Midnight electric skateboard is fitted with a smart
switch which enables the roll to start feature. To turn on your
skateboard this way, either spin a wheel by hand, or place
the skateboard onto the ground and push along to turn on
the board.
REAR AXLE TEMPERATURE
Continued heavy use of yellow and red torque modes may
cause the rear hanger/motor assembly to reach a
temperature where heat protection will be enabled. Stay
clear of the rear axle assembly when it is at elevated
temperatures to avoid burns to the skin. Temperature
protection begins when the hanger temperature reaches
80° celsius and finishes at 92° Celsius. This means the
torque available will start to be reduced at 80° celsius all the
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